Metal-cutting machine.



PATENTED DEC. 18, 1906. G. H. WHITE.

METAL CUTTING MACHINE.

APPLICATION FILED JAN. 30, 19064 6 SHEETS-SHEET 1.

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PATBNTED DEC. 18, 1906. G. H. WHITE. Y

METAL CUTTING MACHINE.

APPLIUATION FILED JAN. 30, 1906.

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No. 838,675. PATENTED DEC. 18, 1906.

I G. H. WHITE. METAL CUTTING MACHINE.

APPLICATION FILED JAN. 30, 1906.

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G. H. WHITE. METAL CUTTING MACHINE.

APPLICATION FILED JAN- 80, 1906.

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PATENTED DEC. 18, 1906.

APPLICATION FILED JAN. 30, 1906.

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QFFWEQ GEORGE nitmirfiw nfiia)onlonicirrjigri ivnsrLvAmA. ASSIGNOR TO s.R. DREssERMAnuFacT-Uitme 'GOMPANY, or BRADFORD, PENN- sYLVANIA lfl r-aJ" ffMETAt- CUTTlNG MA HINE.

I 1 Specification p'f'Letters Patent.

Patented Dec. 18, 1906.

i I Application ile f Ja niary 30.1906. sitar No. 298.728.

xijii'z To all whom, it may concern;

Be it known that 1, GEORGE; HnnRY were;

a citizen of the Unitedstat esflesidingiat City, in the countyof.Yenango'and State of,

Pennsylvania, have invented certain new and useful Improvements inMetal-Cutting Machines; and I do hereby declare'the follow-j: ing to bea full, clear,,and exact description; of the invention, sufchaewillenableothers skilled in the art to to make and use the same. f

My invention consists the novel/features" hereinafter descr bed,reference be ng had to u the accompanymg drawlngs, which llustrate oneform in which I have contemplated em bodying the said inventiomand theinvention is fully disclosed in theffollowing scription and claims.

Referring to thedrawings,Figured i t e-ij sents a s1de elevation ofametal-cutting ma chine embodyingmyinvention, Fig. Zis a top plan view ofthe same, Fig., 3,is afront elevation of the machine, Fig. ,4 isjarearelevation of the machine, Fig.5 is adetailr. sectional view of portionof the inachine,

showing the stationary andl movable j aws and the adjustable, guide ,for the stock, apiece of skelp being shown in position to becut OH and aportion thereof being broken ,away to show the guiding-groove in theplaten. Fig.

6 is a top plan view of ,the, guide' detached,"

showing the end of aisteel s kelpito cut-in engagement therewith. 7 is aperspective view of the same. I

The cut 'ng apparatus hereinshownjandf described isdesignedlforcutting.off flat bars of iron or steel, andjespec iallyskelp, such. as

is used in the manufacture-of metal rings,

the skelp herein shownzbeing providedon one face w1th a long1tudmalbead,as shown 1n Figs. 6 and 7, in whiclrS represents asection of the skelp,and s the longitudinaljbead re ferred to. In the. manufacture of metalrings it is desirable to cut the skelp so thatthe end portions of thesevered blank will be parallel and inclined to the faces thereof, andthis ap-' paratus is therefore constructed toicut the.

skelp in a plane at. an angleto thetop and bottom of the latter. I i

In the drawings, A .A represent the, inain frame of the mach ne, thesaidparts bemg 1n this instance detached and separately mountmaterial. (Notshown.) The main section A of the frame is provided at its front endwitha laterally-oifset portion A and which form's'the rigid jaw of theapparatus and is provided with the stationary knife or cutter C,-secured in an inclined position by means of. suitable bolts 0 in arecess in the rigid jaw. Forward of the cutter C the said jaw isprovidechwith a guiding surface or platen a, is provided with alongitudinal groove a of substantially the same width and depth as -'thebead s, heretofore referredto, and adapted to receive said bead andguide the skelp as it is pushed into the cutter. The front end of theframe portion A is also provided with perforated lugs a (1 which receivethe heavy pivot-pin Z), upon which the cutting-lever B is mounted, asshown. The forward end of the cutting-lever B forms the moyable jaw andis provided with the inclined cutter C or blade secured in a recess inthe jaw by bolts 0, and said movable aw lies between the lugs 0, a ofthe offset portion of the frame A. The portion of the lever B in rear ofthe point of pivoting (indicated at B extends rearwardly in line withone side of the movable jaw and out of line with the cutters or knives CC, (see Fig. 2,) so that any desired length of skelp can be pushedthrough the jaws of the machine before cutting off without interferingwith the cuttingjaws or any of the mechanism for operating the movablejaw.

The rear end of the lever B of the movable jaw is provided on its underface with a removable wearing-plate b, of hardened steel, having its endportions beveled to engage a dovetailed recess in the lever and furthersecured in position by screws, as shown. This wearing-plate engages acam D, rigidly secured to a cam-shaft I), mounted in bearings in theframe members A and A of the ma chine. The shaft D is provided with agearwheel E, loosely mounted thereon and provided with a clutch memberF, and said shaft is also provided with a movable clutch member F,secured to the shaft by means of a key or feather, so as to be capableof longitudinal movement thereon while rotating therewith.

G represents the driving-shaft of the machine, mounted in bearings inthe frame ed upon a suitablejbase.ofconcreteor other members A and A andprovided with a heavy balance-wheel H, fast and loose pulleys H and Hand pinion H, meshing with the gear E. The clutch member F is operatedby a yoke l, pivotally secured to the frame member A and connected by alink I (see Fig. 4) to an arm Z at the rear end of a horizontal shaft L,which is supported in bearings secured to the frame member A and extendsto the front end of the machine, where it is provided with a handoperatinglever Z, by which the clutch may be thrown in or out. Thehand-lever Z (see Fig. 3) extends through a horizontal guide P, which isperforated to receive stop-pins Z" for holding the lever Z in operativeor inoperative position when desired.

The lever B is also provided with a camengaging strap 1) to insure thedownward return movement of the lever after a out has been made.

M represents a horizontally-disposed guidesupporting bar extending fromthe offset portion A of the frame member A rearward to the end of themachine, where it extends downward, as at m, and is secured at its lowerend to the base of the frame member A. On this bar M is supported theadjustable trip-guide. This guide comprises sliding block N, adapted toslide on the bar M and provided with perforated ears n, in which ispivoted a lever N, having its forward end bent downwardly and formingthe guide proper, n. The rear end of the lever N is provided with acounterbalance-weight 71 (or spring) which holds the lever nor mally incontact with a stop or support nf on the block N. One edge of the guideproper, a, is exactly in line with one edge of the recess a in theplaten, and this guide n performs the double function of determining thelength of the skelp which is cut off and also alining the skelp, so thatthe cut is made perpendicularly to the lateral edges of the skelp.

It will be seen that the skelp is cut angularly, and as the bead s is onthe lower side a small portion of the bead will project beyond the endof the plane portions of the skelp, as clearly shown in Fig. 6. Infeeding the skelp forward over the platen a into the machine it ispushed in until the end engages the guide it (which has been previouslyset at the desired point) by means of setscrews a a, and the projectingportion of the bead s is placed against that edge of the guide n whichis in line with an edge of the groove a. The skelp is thus held by saidguide a and by the groove (1/ in a position to be cut straight acrossperpendicularly to its lateral edges.

To produce a cut, the operator throws the lever Z to the left, (viewedfrom the front of the machine, see Fig. 3,) ius moving the clutch memberF into engagement with. the

clutch member F and causingthe cam-shaft D and cam D to rotate,elevating the lever B and lowering the movable jaw B and cutter C. Asthe skelp is cut diagonally or in a downwardly and rearwardly inclineddirection, the effect of the cut is to push the severed piece of theskelp rearwardly. The rear end of the severed portion is in engage mentwith the guide proper, n, and as the severed piece is pushed rearwardlythe lever N rocked on its pivot, the guide n moving rearwardly and theweight n being elevated, thus' allowing the severed piece to clear theguide and drop. As it falls its front or forward end strikes an inclinedportion A", (see Fig. 5,) forming the rear face of the laterally-offsetportion of the frame portion A, and thus the severed portion will bepushed to the rear and will fall upon the bottom plate or flange of theframe portion A out of the way and may be removed from the machine. Assoon as the cut has been made and the cam has lowered the lever B andraised the movable jaw into open position the operator will move theclutch-lever Z to the right, Fig. 3, thus throwing the clutch member Fout of engagement with the member F and stopping the cutting apparatus,although the driving-shaft may be permitted to run continuously when themachine is in use. The skelp is then pushed in until it engages theguide a, (which is restored to normal position by the weight a as soonas a severed piece is discharged,) and the operation is repeated.

The heavy balance-wheel on the drivingshaft, which is driven atconsiderable speed, acquires a considerable momentum, which assists ineffecting the cut when the clutch is thrown in without perceptiblyslowing down the machine.

What I claim, and desire to secure by Letters Patent, is-- 1. In ametal-cutting machine, the combination with the main frame, of a movablejaw pivotally mounted therein, and provided with a cutting-bladearranged in a plane parallel with the pivotal axis of the jaw, saidmachine providing a straight unobstructed path therethrough for thematerial, perpendicular to the said blade and in a horizontal planepassing between the cuttingblades, and operating mechanism for saidmovable jaw, located laterally of said path, substantially as described.

2. In a metal-cutting machine, the combi nation with the main frameprovided with fixed aw carrying a cutting-blade of a movable jaw,pivotally mounted in said frame and provided with a cutting-blade, saidblades being disposed in a plane parallel to the pivotal axis of saidmovable jaw, said machine having a straight unobstructed path.therethrough for the material, perpendicular to said blades and in ahorizontal plane passing between the cutting-blades, an operating- IIOizo

lever for the movable jaw located at one side of said path, andoperating mechanism for said lever, located on the same side of saidpath, whereby any desired length of material can be fed between saidblades, before cut ting off, substantially as described.

3. In a metal-cutting machine, the combination with the main frameprovided with a lateral offset portion, forming the fixed jaw, andprovided with a cutting-blade, a movable jaw above said offset portionof the frame pivotally mounted therein and provided with acutting-blade, said blades being arranged parallel with the pivotal axisof the movable aw, said machine providing a straight unobstructedpassage for the mate rial in rear of said offset portion of the frame,and perpendicular to the blades and in a horizontal plane passingbetween the cuttingblades, an operating-lever for said movable jawextending rearwardly therefrom at one side of said path, and operatingmechanism for said lever, mounted in the main frame at one side of saidpath, substantially as described.

a. In a metal-cutting machine, the combination with the main frame, of amovable jaw pivotally mounted therein, and provided. with acutting-blade arranged in a plane parallel with the pivoted axis of thejaw, said machine providing a straight unobstructed path therethroughfor the material, perpendicular to the said blade, and operatingmechanism for said movable jaw, located laterally of said path, asupport for an adjustable stop located at one side of the path of thematerial through the machine, and an adjustable stop mounted on saidsupport, and having a part extending into the path of the material inline with the cutting-blades, substantially as described.

5. In a metal-cutting machine, the combination with the main frame, ofamovable jaw pivotally mounted therein, and provided with acutting-blade arranged in a plane parallel with the pivotal axis of thejaw, said machine providing an unobstructed path therethrough for thematerial, perpendicular to the said blade, and operating mechanism forsaid movable jaw, located laterally of said path, a support for anadjustalile stop located at one side of the path of the material throughthe machine, and an adjustable stop mounted on said support and having ayielding part in the path of the material, substantially as described.

6. In a metal-cutting machine, the combination with. a stock-engagingplaten or support, provided with a narrow longitudinallydisposedguiding-groove in its upper face, located between the lateral edges ofsaid platen, and a pair of cutting-blades arranged adjacent to saidplaten, and disposed transversely with respect to said guiding-groove,substantially as described.

7. In a metal-cutting machine, the combination with a stock-engagingplaten or support provided with anarrow, longitudinal, web-engaging,guiding-groove in its face between its lateral edges, a pair ofcuttingblades of substantially the width of the platen arranged adjacentto said platen and disposed transversely with respect to said groove,and a guide for the end of the stock located on the side of said bladesopposite to the platen, and having a web-engaging edge in linelongitudinally with one edge of said guiding-groove, substantially asdescribed.

8. In a metal-cutting machine, the combination with the main framehaving a laterally-offset portion provided with a horizontal platenhaving a longitudinally-disposed guiding-groove thereon, and a fixedcutting blade located in rear of the said platen and disposedtransversely thereto and obliquely to the face of said. platen, amovable jaw mounted in said offset portion of the frame and providedwith a cutting-blade disposed transversely of and obliquely to saidplaten, said movable jaw having an operating-lever located at one sideof said cutting-blades, and operating mechanism for said lever havingall its parts out of the path of the stock as it is fed over said plateninto the machine, substantially as described.

9. In a metal-cutting machine, the combination with the main framehaving a laterally-offset portion provided with a horizontal platenhaving a longitudinally-disposed guiding-groove therein, and a fixedcuttingblade located in rear of the said platen and disposedtransversely thereto and obliquely to the face of said platen, a movablejaw mounted in said offset portion of the frame and provided with acutting-blade disposed transversely of and obliquely to said platen,said movable jaw having an operating-lever located at one side of saidcutting-blades, operating mechanism for said lever having all its partslocated out of the path of the stock as it is fed over said platen, alongitudinally-disposed guide-bar, a block adjustably mounted thereon, alever pivoted to said block and provided at one end with a guidedepending therefrom into the horizontal plane of the platen and havingone edge in line with one edge of the guiding-groove therein, and itsother end provided with a counterbalance, substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses.

I GEOR GE HENRY WHITE.

W'itnesses ELIZABET MULLIGAN, J os. W. BARR.

